Question

Date:
यदि +y =25 और Xy=35 है तो1/x+1/y=?​

Answer 1

Answer:

3026

Step-by-step explanation:

As x+y =12 then

Y=12-x …Eq1

And xy=35 then

x(12-x)=35

12x-x^2=35

x^2–12x+35=0

x^2–7x-5x+35=0

x(x-7) -5(x-7) =0

(x-7)(x-5) =0

x= 7,5

Then y=12-x

When x=7 then y=5 and

when x=5 then y=7

So, When x=7 and y=5 then

x^4 + y^4 = 2401+ 625= 3026

And when x=7 and y=5 then also ans is 3026

I hope this may proof useful.